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Java example source code file (FreshestCRLExtension.java)

This example Java source code file (FreshestCRLExtension.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

crldistributionpointsextension, freshestcrlextension, ioexception, math, name, object, string, util

The FreshestCRLExtension.java Java example source code

/*
 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package sun.security.x509;

import java.io.IOException;
import java.io.OutputStream;
import java.math.BigInteger;
import java.util.Enumeration;
import java.util.List;

import sun.security.util.*;

/**
 * Represents the Freshest CRL Extension.
 *
 * <p>
 * The extension identifies how delta CRL information for a
 * complete CRL is obtained.
 *
 * <p>
 * The extension is defined in Section 5.2.6 of
 * <a href="http://www.ietf.org/rfc/rfc3280.txt">Internet X.509 PKI Certific
ate and Certificate Revocation List (CRL) Profile</a>.
 *
 * <p>
 * Its ASN.1 definition is as follows:
 * <pre>
 *     id-ce-freshestCRL OBJECT IDENTIFIER ::=  { id-ce 46 }
 *
 *     FreshestCRL ::= CRLDistributionPoints
 * </pre>
 *
 * @since 1.6
 */
public class FreshestCRLExtension extends CRLDistributionPointsExtension {

    /**
     * Attribute name.
     */
    public static final String NAME = "FreshestCRL";

    /**
     * Creates a freshest CRL extension.
     * The criticality is set to false.
     *
     * @param distributionPoints the list of delta CRL distribution points.
     */
    public FreshestCRLExtension(List<DistributionPoint> distributionPoints)
        throws IOException {

        super(PKIXExtensions.FreshestCRL_Id, false, distributionPoints, NAME);
    }

    /**
     * Creates the extension from the passed DER encoded value of the same.
     *
     * @param critical true if the extension is to be treated as critical.
     * @param value an array of DER encoded bytes of the actual value.
     * @exception IOException on decoding error.
     */
    public FreshestCRLExtension(Boolean critical, Object value)
    throws IOException {
        super(PKIXExtensions.FreshestCRL_Id, critical.booleanValue(), value,
            NAME);
    }

    /**
     * Writes the extension to the DerOutputStream.
     *
     * @param out the DerOutputStream to write the extension to.
     * @exception IOException on encoding errors.
     */
    public void encode(OutputStream out) throws IOException {
        super.encode(out, PKIXExtensions.FreshestCRL_Id, false);
    }
}

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